US4494396A - Multistage rolling mill with flatness control function - Google Patents

Multistage rolling mill with flatness control function Download PDF

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Publication number
US4494396A
US4494396A US06/361,970 US36197082A US4494396A US 4494396 A US4494396 A US 4494396A US 36197082 A US36197082 A US 36197082A US 4494396 A US4494396 A US 4494396A
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United States
Prior art keywords
roll
rolls
work roll
work
shaft
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Expired - Lifetime
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US06/361,970
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English (en)
Inventor
Toshio Iwanami
Hajime Watanabe
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IHI Corp
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Ishikawajima Harima Heavy Industries Co Ltd
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Assigned to ISHIKAWAJIMA-HARIMA JUKOGYO KABUSHIKI KAISHA reassignment ISHIKAWAJIMA-HARIMA JUKOGYO KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: IWANAMI, TOSHIO, WATANABE, HAJIME
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/145—Lateral support devices for rolls acting mainly in a direction parallel to the movement of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/026—Quinto, five high-stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B2031/206—Horizontal offset of work rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2269/00—Roll bending or shifting
    • B21B2269/10—Horizontal bending of rolls

Definitions

  • the present invention relates to a multistage rolling mill with a mechanism for controlling the flatness of the rolled product.
  • a conventional four high mill has only a roll bending device for vertical bending, and for this reason, it allows only a limited crown correction and can correct only a simple parabolic shape. This allows only the flatness correction of edge waves and center buckles and does not provide sufficient capability in controlling complicated ones such as compound waves, etc. Furthermore, for narrow sheets with a width smaller than 1/2 of the roll shaft length, unsatisfactory results in flatness correction are obtained.
  • the first object of the present invention is to considerably enhance the capability of the rolling mill in controlling the flatness of the rolled product.
  • the second object of the present invention is not to lower the workability in roll exchange and maintenance in enhancing the capability of controlling the flatness of the rolled product.
  • FIG. 1 is a schematic view of the above-mentioned prior art rolling mill
  • FIG. 2 is an essential view showing the basic structure of the rolling mill according to the present invention.
  • FIG. 3 is a detail view of the roll support in FIG. 2;
  • FIG. 4 is a schematic view of the rolling mill showing the first improvement of the present invention
  • FIG. 5 is a partial illustration of FIG. 4
  • FIG. 6 is a cutaway side view of the rolling mill showing the second improvement of the present invention.
  • FIG. 7 is a view taken in the direction of the arrow VII--VII of FIG. 6;
  • FIG. 8 is a detail view of the pressure roll support mechanism in FIG. 6;
  • FIG. 9 is a partial view looking in the direction of the arrow IX of FIG. 8;
  • FIG. 10 is a partial view looking in the direction of the arrow X of FIG. 8;
  • FIG. 11 is a cutaway side view of the rolling mill showing the third improvement of the present invention.
  • FIG. 12 is a view taken in the direction of the arrow XII--XII of FIG. 11;
  • FIG. 13 is a view taken in the direction of the arrow XIII--XIII of FIG. 12;
  • FIG. 14 is a partial plan view of the rolling mill showing the fourth improvement of the present invention.
  • FIG. 15 is a view taken in the direction of the arrow XV--XV of FIG. 14;
  • FIG. 16 is a view taken in the direction of the arrow XVI--XVI of FIG. 14.
  • FIG. 17 is a schematic view of a set-up in which horizontal force components are not present in the intermediate and lower work rolls.
  • an intermediate roll 5 almost the same as the lower work roll 2 in diameter is provided between the upper backup roll 3 and the upper work roll 1.
  • the intermediate roll 5 and the lower work roll 2 are positioned on a vertical line, and the upper work roll 1 is formed to be as small in diameter as allowed in view of strength, being positioned properly downstream in the rolling direction (offset e). In this state, if a work 8 is rolled, the upper work roll 1 deflects to get away downstream.
  • a pressure roll 6 almost the same as the upper work roll 1 in length is provided on the outer circumference of the upper work roll 1 on the downstream side in the rolling line, to press the upper work roll 1 for adjusting the horizontal deflection of the upper work roll 1.
  • Rolls 7 properly divided in the roll width direction are provided on the pressure roll 6 on the downstream side in the rolling line, to support said pressure roll 6.
  • Each of the divided rolls 7 is supported by a proper support 9 which is arranged to be movable in the direction of the straight line connecting the axes of the upper work roll 1 and the pressure roll 6 by a mover 10 of screw rod type (or cylinder type, etc.) supported by housings 11.
  • two sets may be provided in the positions in contact with the straight line connecting the pressure roll 6 and the upper work roll 1 (see the imaginary lines of FIG. 2).
  • double chocks 12 and 12' are provided at the shaft ends of the upper and lower work rolls 1 and 2 and the intermediate roll 5, double chocks 12 and 12' are provided, and cylinders 13 and 13' are provided in association with the respective chocks 12 and 12', as bending devices 14 for vertically bending the upper and lower work rolls 1 and 2 and the intermediate roll 5.
  • the pressures to the pressure roll 6 are adjusted individually by the action of the movers 10 through the divided rolls 7, to freely adjust the deflection of the upper work roll 1 at the respective portions with the horizontal displacement of the pressure roll 6 due to said pressures as vertical displacement of the work rolls 1 and 2.
  • the clearance between the upper and lower work rolls 1 and 2 at the portion decreases, to decrease the thickness of the work 8 at the portion.
  • the pressure of the divided roll 7 is weakened, it acts to increase the plate thickness.
  • the respective divided rolls 7 provided in the width direction can be simultaneously adjusted to be pressed to or moved from the pressure roll 6.
  • the deflection of the upper work woll 1 can be freely adjusted at plural portions by adjusting the positions of the divided rolls 7, the flatness of the work 8 can be controlled arbitrarily.
  • the bending devices 14 provided for the upper and lower work rolls 1 and 2 can be operated, for more accurate flatness control of the work 8.
  • the bending device 14 provided for the intermediate roll 5 can be operated, for more accurate and wider-range flatness control of the work 8.
  • any structure allowing the movement in parallel to the upper work roll 1 may be added to the rolls 6 and 7, or any structure allowing the movement of only the pressure roll 6 against the divided rolls 7 or of only the divided rolls 7 against the pressure roll 6 in parallel to the upper work 1 may be added.
  • the intermediate roll 5 and the lower work roll 2 are eccentrically arranged on the offset side in the rolling line on the straight line connecting the upper work roll 1 and the upper backup roll 3 and on the straight line connecting the upper work roll 1 and the lower backup roll 4, respectively, the horizontal components of force of the intermediate roll 5 and the lower work roll 2 do not occur.
  • the upper work roll is small in diameter and offset in the rolling direction, but this structure may be applied to the lower work roll. Furthermore, the divided rolls for pressing and supporting the pressure roll may be substituted by divided static pressure pads.
  • the support for the small-diameter work roll may be by means of double chocks and the bending force may be applied to the outer chocks of the latter, thereby applying the horizontal bending from the outer chocks.
  • the lower work roll 2 is small in diameter, but since the diameter is not too small, it can be driven, to overcome the problems of meandering of the work upon entering, etc.
  • a work roll can be driven, and when the work roll is limited in torque, the intermediate roll can be also driven.
  • V Divided pressure devices for supporting the pressure roll can be moved and adjusted individually, to allow complicated flatness control of compound waves, etc.
  • FIGS. 4 and 5 the same parts as those shown in FIGS. 2 and 3 are indicated by the same reference numerals.
  • Said divided rolls 7 are fitted on a shaft 15 at proper intervals, to be in contact with said pressure roll 6, and movable plates 16 are provided between the respective rolls of said shaft 15.
  • a wedge 19 adapted to be moved by the expansion and contraction of a cylinder 18 is so inserted that by the action of said cylinders 18 the lower work roll 2 may be displaced horizontally through the wedges 19, the movable plates 16, the shaft 15 the divided rolls 7 and the pressure roll 6.
  • bearings 24 of the pressure roll 6 are contained in the journal boxes 20 of the lower work roll 2, to be capable of moving horizontally, as shown in FIG. 5.
  • the lower work roll journal boxes 20 contain, on the upstream side, cylinders 22 adapted to contact upstream-side cylinder blocks 21 on their sides, which adjust and hold the distance against the journal boxes of the upper work roll 1 and the intermediate roll 5.
  • the lower work roll 2 can be moved horizontally, and horizontal bending can be applied to the lower work roll 2 from the shaft end portions.
  • the divided rolls 7 are put in a downstream-side cylinder block 23.
  • the cylinders 18 are actuated to move and adjust the wedges 19, the movable plates 16, the shaft 15, and the divided rolls 7 individually, for free adjustment of the deflection of the lower work roll 2 at the respective portions.
  • the backlash between the lower work roll 2 and the upper work roll 1 at the portion decreases, to decrease the thickness of the work 8 at the portion, and if the pressure of the divided roll 7 is weakened, the plate thickness at the portion increases. Since the deflection of the lower work roll 2 can be adjusted optionally at a plurality of positions, the flatness of the work 8 can be easily controlled.
  • the pressure roll bearings 24 are contained in the lower work roll journal boxes 20, with the divided rolls 7 arranged not to protrude from the downstream-side cylinder block 23, the pressure roll 6 put under the most severe condition can be drawn out of the stand, together with the lower work roll 2, and can be easily fitted in.
  • a first example of the horizontal bending device to obtain a given bending curve in the work roll can be realized, and since the pressure roll and the small-diameter work roll can be handled together, the roll exchange and maintenance are facilitated.
  • the divided rolls 7 are apart from each other as mentioned above and fixed on the shaft 15, and the movable plates 16 are provided between these divided rolls 7 and at both the ends of the shaft 15, to support said shaft 15 rotatably.
  • the movable plates 16 under those positioned at both the ends of the shaft 15, there are support members 28 with guide surfaces extending in the direction of the rolling line P, and the support members 28 are supported in the housings 11 by brackets 29 fixed to the housings 11.
  • the movable plates 16 ride on the guide surfaces of said support members 28, being able to move in the direction of the rolling line P.
  • a fluid pressure cylinder 30 for moving each of the movable plates 16 of the divided rolls 7 in parallel to the rolling line P toward the lower work roll 2 is provided for each of the movable plates 16, in a beam 31 connected to both the housings 11.
  • the fluid pressure cylinder 30 has a piston 33 with a spherical pad 32 fitted at the tip, and said piston 33 is forced out by oil pressure, to press the spherical pad 32 against the receiving surface of the movable plate 16.
  • Sensors 34 are provided to detect the positions of the pistons 33 of the respective fluid pressure cylinders 30, for detecting the deflection state of the lower work roll 2.
  • the detected signals are fed through cables 35 to an arithmetic unit, to adjust the oil pressures of the respective fluid pressure cylinders 30, for moving the respective divided rolls 7 individually, thereby controlling the deflection of the lower work roll 2 in the most appropriate condition.
  • Reference numeral 36 indicates fluid pressure cylinders to eliminate the backlash between the spherical pads 32 and the receiving surfaces of the movable plates 16 as well as to serve the exchange of the divided rolls 7, and each of the fluid pressure cylinders 36 is equipped with a piston rod 38 having a hook member 37 provided at its tip. The hook member 37 is engaged with each of the movable plates 16 of the divided rolls 7 provided at both ends.
  • the support mechanism of the pressure roll 6 will be described below.
  • a guide 39 is fastened to each of the inner journal boxes 26 of the intermediate roll 5, and said guide 39 and a slider 40 are mutually fitted through a dovetail groove, to be able to slide vertically.
  • the guide 39 and the journal box 26 are mutually fixed by a bracket 41 protruded from the journal box 26 and by a nut 43 through a bolt 42 pivotally fitted to the guide 39.
  • a T-shaped bearing unit 44 for supporting each shaft end of the pressure roll 6 is fitted to the slider 40, to be movable almost in the rolling direction, and a compression spring 45 is between the bearing unit 44 and the slider 40.
  • the nuts 43 are adjusted, to align the centers of the lower work roll 2, the pressure roll 6 and the divided rolls 7 on one straight line.
  • the pressures of the divided rolls 7 to the pressure roll 6 are individually adjusted by the action of the respective fluid pressure cylinders 30, to freely adjust the deflection of the lower work roll 2 in the respective portions.
  • the positions of the pistons 33 of the respective fluid pressure cylinders 3 are detected and measured by the sensors 34, and the signals detected by the sensors 34 are fed to the arithmetic unit, for predetermined computation in the arithmetic unit, to adjust the oil pressure of the respective fluid pressure cylinders 30.
  • the deflection state of the lower work roll 2 can be measured also be detecting the pressures of the fluid pressure cylinders, or by detecting both the positions of the pistons and the pressure of the fluid pressure cylinders. By adjusting the positions of the respective divided rolls 7 like this, the deflection of the lower work roll 2 can be freely adjusted at plural positions according to the rolling condition, etc.
  • the divided rolls 7 are moved downstream in the rolling direction, and the backup roll is moved downward.
  • the intermediate roll 5 can be exchanged, by drawing it in the width direction of the work 8 in this state.
  • the lower work roll 2 can be exchanged by raising it, with the intermediate roll 5 drawn out.
  • the pressure roll 6 can be exchanged in this state, by loosening the nuts 43 and disengaging the bolts 42 from the brackets 41. In this case, if the bolt hole of the bracket 41 is notched to allow the bolt 42 to be fitted in from a side of the bracket, the bolt 42 can be disengaged from the bracket 41, without removing the nut 43 perfectly.
  • the respective rolls can be fitted by working in reverse to the above. Since the pressure roll 6 can be moved in two directions as mentioned before, the centers of the lower work roll 2, the pressure roll 6 and the divided rolls 7 can be aligned on one line easily, even if the diameter of the lower work roll 2 changes.
  • a second example of the horizontal bending device to obtain a given bending curve in the work roll can be realized, and since the respective rolls can be singly removed, the roll exchange can be made very easily. Especially the pressure roll used in a severe condition can be easily exchanged, contributing to the enhancement of the operating ratio.
  • the shaft centers of the intermediate roll, the work rolls and the divided rolls can be held in one plane, for accurate adjustment of the deflection of the work roll by horizontal bending.
  • a journal box 20 is provided at each end of the lower work roll 2, having a step 47 with a cylindrical guide face, the center of curvature of which is the same as the shaft center of the lower work roll 2.
  • Each end of the shaft 15 is provided with a rotatable arm 48, and said arm 48 is provided with guide grooves 49 and 50 in the direction to approach and move from the shaft center of the lower work roll 2.
  • a block 51 with a curved surface to be engaged with said step 47 is fitted in the guide groove 49, and the journal box 52 of the pressure roll 6 is fitted in the guide groove 50.
  • a spring 53 biassing the block 51 toward the step 47 is held, and between the block 51 and the arm 48, a connector 54 preventing the leaving of the block 51 is provided.
  • the guide groove 50 of the pressure roll 6 is so provided that when the block 51 is pressed toward the step 47, the shaft center of the pressure roll 6 may be positioned in the plane containing the respective shaft centers of the lower work roll 2 and the divided rolls 7. Furthermore, between the arms 48 and the beam 31, fluid pressure cylinders 46 are provided to rotate the arms 48 around the shaft center of the divided rolls 7.
  • the fluid pressure cylinders 46 are actuated to turn and hold the arms 48 in a predetermined direction, and other fluid pressure cylinders 30 are actuated to move the divided rolls 7 toward the lower work roll 2, causing the pressure roll 6 to contact the lower work roll 2.
  • the blocks 51 are in pressure contact with the steps 47 by the force of the springs 53, and the shaft center of the pressure roll 6 is positioned in the plane containing the respective shaft centers of the lower work roll 2 and the divided rolls 7.
  • the divided rolls 7 can move horizontally, and the pressure roll 6 can rotate around the shaft center of the divided rolls 7, said pressure roll 6 being able to move in said plane. Therefore, irrespective of the diameter of the lower work roll 2, the pressure roll 6 and the divided rolls 7 can be arranged in an ideal state.
  • the pressure roll 6 is pivotally supported by the arms 48 as an example, but the pressure roll 6 can be pivotally supported by the blocks 51. Furthermore, since the step 47 provided at the journal box 20 is only required to guide the block 51 circumferentially around the roll shaft center, the guide surface is not required to form a continuous curved face.
  • the pressure roll can be held always in a proper position, and even if the diameter of the work roll or intermediate roll changes, to change the shaft center position, the shaft center of the pressure roll is automatically displaced into a proper position. Therefore, the adjustment of the position of the pressure roll can be neglected. Furthermore, since the pressure roll can be held always in a proper position, the deflection of the work roll can be precisely adjusted, to increase the capability of controlling the flatness of the rolled product.
  • the fourth improvement of the present invention allows the horizontal bending force to be sensitively transmitted from the divided rolls to the work roll.
  • fluid pressure cylinders 30-1, 30-2, . . . , 30-7 allowing piston rods 56-1, 56-2, . . . , 56-7 to advance and recede in the direction of the rolling line are provided in said casing 55 at required intervals in the width direction of the rolling mill.
  • the movable plates 16-1, 16-2, . . . , 16-7 are provided to be slidable toward the lower work roll 2, by the piston rods 56-1, 56-2, . . . , 56-7.
  • the movable plates 16-1, 16-2, . . . , 16-7 are provided, at their tips, with horizontal U-shaped grooves in the surfaces on the side of the lower work roll 2, and a shaft 57 parallel to the lower work roll 2 is inserted in the grooves, being supported by the groove edges.
  • Clamps 59a and 59b for holding the shaft 57, opened and closed by fluid pressure cylinders 58a and 58b, are pivotally fitted to the movable plates 16-1 and 16-7 on both sides, and divided rolls 7-1, 7-2, . . . , 7-6 are rotatably fitted on the shaft 57, to be positioned between the respective movable plates 16-1, 16-2, . . . , 16-7.
  • the pressure roll 6 the center of which is positioned on a straight line connecting the center of the lower work roll 2 and the center of the divided rolls 7-1, 7-2, . . . , 7-6, is arranged in parallel to the lower work roll 2.
  • journal boxes 52 are fitted to guide the pressure roll 6 to move in the same direction as the piston rods 56-1, 56-2, . . . , 56-7, though not allowing it move vertically.
  • concave crowns are formed at the positions in contact with the divided rolls 7-1, 7-2, . . . , 7-6, to be large in diameter near the centers of the respective divided rolls in the width direction, and to be smaller according to the distance from the centers.
  • pressure oil is supplied to the fluid pressure cylinders 30-1, 30-2, . . . , 30-7 to protrude the piston rods 56-1, 56-2, . . . , 56-7 individually by given distances, moving the movable plates 16-1, 16-2, . . . , 16-7 by given distances, thereby pressing the divided rolls 7-1, 7-2, . . . , 7-6 by the movable plates 16-1, 16-2, . . . , 16-7 at the respectively optional strengths to the pressure roll 6, to apply desired horizontal bending to the pressure roll 6.
  • the pressure roll 6 is provided with concave crowns at the positions in contact with the divided rolls 7-1, 7-2, . . . , 7-6 as shown in FIG. 14, the bending forces from the respective divided rolls are sensitively transmitted to the lower work roll 2 at the positions corresponding to the respective divided rolls.
  • the shaft of the divided rolls is inserted in the horizontal U-shaped grooves provided in the support plate, with both the ends clamped.
  • U-shaped grooves round holes may be provided to have the shaft inserted through them.
  • the roll which is offset and pressed by the pressure roll may be the upper work roll.
  • wedges or screw rods may be used instead of the fluid pressure cylinders.
  • the pressure roll is provided with concave crowns corresponding to the divided rolls, the displacement by horizontal bending can be effectively applied to the work roll. Therefore, the vertical displacement and deflection curve of the work roll can be set greatly and freely, and as a result, the flatness control function is further enhanced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
US06/361,970 1981-04-02 1982-03-25 Multistage rolling mill with flatness control function Expired - Lifetime US4494396A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56049960A JPS57165104A (en) 1981-04-02 1981-04-02 Multiple stages rolling mill having shape controlling function
JP56-49960 1981-04-02

Publications (1)

Publication Number Publication Date
US4494396A true US4494396A (en) 1985-01-22

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ID=12845593

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Application Number Title Priority Date Filing Date
US06/361,970 Expired - Lifetime US4494396A (en) 1981-04-02 1982-03-25 Multistage rolling mill with flatness control function

Country Status (5)

Country Link
US (1) US4494396A (enrdf_load_stackoverflow)
JP (1) JPS57165104A (enrdf_load_stackoverflow)
DE (1) DE3212070C2 (enrdf_load_stackoverflow)
FR (1) FR2502990B1 (enrdf_load_stackoverflow)
GB (1) GB2096035B (enrdf_load_stackoverflow)

Cited By (5)

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US4577480A (en) * 1983-06-22 1986-03-25 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Method and apparatus for controlling rolling correction in rolling mill
US4614103A (en) * 1983-12-29 1986-09-30 Hitachi, Ltd. Rolling mill
US4676085A (en) * 1985-07-31 1987-06-30 Wean United Rolling Mills, Inc. Rolling mill for controlling the contour of a workpiece
US6675623B2 (en) * 2001-07-13 2004-01-13 The Furukawa Electric Co., Ltd. Method and apparatus for manufacturing keystone type superconducting compacted stranded wires
US20120253502A1 (en) * 2011-03-28 2012-10-04 Markus Holm Method Of Flatness Control Of A Strip And A Control System Therefor

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JPS57195523A (en) * 1981-05-28 1982-12-01 Ishikawajima Harima Heavy Ind Co Ltd Controlling method and apparatus for roll bending in rolling mill
CH657547A5 (de) * 1982-08-31 1986-09-15 Escher Wyss Ag Walzwerk fuer ein bahnfoermiges material.
US4539833A (en) * 1983-01-18 1985-09-10 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Rolling mill with flatness control facility
US4539834A (en) * 1983-02-24 1985-09-10 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Rolling mill
DE3308673A1 (de) * 1983-03-11 1984-09-20 SMS Schloemann-Siemag AG, 4000 Düsseldorf Mehrwalzengeruest
JPS59148115U (ja) * 1983-03-23 1984-10-03 石川島播磨重工業株式会社 圧下補正装置
DE3323641A1 (de) * 1983-04-02 1984-10-04 SMS Schloemann-Siemag AG, 4000 Düsseldorf Mehrwalzengeruest
JPS59209408A (ja) * 1983-05-05 1984-11-28 インテグレイテツド　インダストリアル　システムズ　インコ−ポレイテツド 横方向支え装置
DE3335857A1 (de) * 1983-10-03 1985-04-18 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit mittels stuetzrollen abstuetzbarer arbeitswalzen
DE3431691C2 (de) * 1984-08-29 1987-01-02 Achenbach Buschhütten GmbH, 5910 Kreuztal Vorrichtung zur Regelung der Planheit und der Dicke von Walzband in einem Mehrwalzen-Bandwalzgerüst
JPS62127340U (enrdf_load_stackoverflow) * 1986-02-05 1987-08-12
JPS62244501A (ja) * 1986-04-16 1987-10-24 Kawasaki Heavy Ind Ltd 圧延スタンド
JPH0741290B2 (ja) * 1986-08-08 1995-05-10 株式会社日立製作所 多段圧延機
JPS6360006A (ja) * 1986-08-29 1988-03-16 Kawasaki Heavy Ind Ltd 圧延スタンド
DE3736683C3 (de) * 1987-10-29 2003-09-11 Froehling Josef Gmbh Mehrrollen-Walzgerüst
JP2601849B2 (ja) * 1988-01-12 1997-04-16 三菱重工業株式会社 圧延機のクラウン調整装置
JPH0756081Y2 (ja) * 1993-02-12 1995-12-25 川崎重工業株式会社 圧延スタンド

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US3363444A (en) * 1962-12-22 1968-01-16 Skf Svenska Kullagerfab Ab Rolling mill
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US4194382A (en) * 1976-11-26 1980-03-25 Hitachi, Ltd. Rolling mill
US4365496A (en) * 1977-03-01 1982-12-28 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Rolling process
US4132095A (en) * 1977-08-04 1979-01-02 United States Steel Corporation Automatic gauge control method and apparatus for tandem strip mills
JPS55126310A (en) * 1979-03-20 1980-09-30 Ishikawajima Harima Heavy Ind Co Ltd Controlling method for sheet crown in rolling mill

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577480A (en) * 1983-06-22 1986-03-25 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Method and apparatus for controlling rolling correction in rolling mill
US4614103A (en) * 1983-12-29 1986-09-30 Hitachi, Ltd. Rolling mill
US4676085A (en) * 1985-07-31 1987-06-30 Wean United Rolling Mills, Inc. Rolling mill for controlling the contour of a workpiece
US6675623B2 (en) * 2001-07-13 2004-01-13 The Furukawa Electric Co., Ltd. Method and apparatus for manufacturing keystone type superconducting compacted stranded wires
US20120253502A1 (en) * 2011-03-28 2012-10-04 Markus Holm Method Of Flatness Control Of A Strip And A Control System Therefor
US9399245B2 (en) * 2011-03-28 2016-07-26 Abb Research Ltd. Method of flatness control of a strip and a control system therefor

Also Published As

Publication number Publication date
FR2502990A1 (fr) 1982-10-08
JPS649084B2 (enrdf_load_stackoverflow) 1989-02-16
DE3212070C2 (de) 1986-04-10
GB2096035A (en) 1982-10-13
JPS57165104A (en) 1982-10-12
FR2502990B1 (fr) 1986-06-20
DE3212070A1 (de) 1982-10-14
GB2096035B (en) 1985-01-16

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